Woman in a chastity belt 30

"A brave woman who decides to live for the sake of her loved one and is willing to do so. I want to push her away and enjoy her as a sex slave."...A woman she has been attracted to when asked by an enthusiast. That was Sakura, an office lady who was proposed to and was in the midst of happiness. He becomes a sacrifice to a maniac and even manages his excretion... Aching body, hatred and obedience. ...And then, he is forced to expose himself to public shame!